2 * wm8962.c -- WM8962 ALSA SoC Audio driver
4 * Copyright 2010 Wolfson Microelectronics plc
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
19 #include <linux/gcd.h>
20 #include <linux/i2c.h>
21 #include <linux/input.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/slab.h>
25 #include <linux/workqueue.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/soc-dapm.h>
31 #include <sound/initval.h>
32 #include <sound/tlv.h>
33 #include <sound/wm8962.h>
37 static struct snd_soc_codec
*wm8962_codec
;
38 struct snd_soc_codec_device soc_codec_dev_wm8962
;
40 #define WM8962_NUM_SUPPLIES 8
41 static const char *wm8962_supply_names
[WM8962_NUM_SUPPLIES
] = {
52 /* codec private data */
54 struct snd_soc_codec codec
;
55 u16 reg_cache
[WM8962_MAX_REGISTER
+ 1];
60 int bclk
; /* Desired BCLK */
67 struct regulator_bulk_data supplies
[WM8962_NUM_SUPPLIES
];
68 struct notifier_block disable_nb
[WM8962_NUM_SUPPLIES
];
70 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
71 struct input_dev
*beep
;
72 struct work_struct beep_work
;
77 /* We can't use the same notifier block for more than one supply and
78 * there's no way I can see to get from a callback to the caller
79 * except container_of().
81 #define WM8962_REGULATOR_EVENT(n) \
82 static int wm8962_regulator_event_##n(struct notifier_block *nb, \
83 unsigned long event, void *data) \
85 struct wm8962_priv *wm8962 = container_of(nb, struct wm8962_priv, \
87 if (event & REGULATOR_EVENT_DISABLE) { \
88 wm8962->codec.cache_sync = 1; \
93 WM8962_REGULATOR_EVENT(0)
94 WM8962_REGULATOR_EVENT(1)
95 WM8962_REGULATOR_EVENT(2)
96 WM8962_REGULATOR_EVENT(3)
97 WM8962_REGULATOR_EVENT(4)
98 WM8962_REGULATOR_EVENT(5)
99 WM8962_REGULATOR_EVENT(6)
100 WM8962_REGULATOR_EVENT(7)
102 static int wm8962_volatile_register(unsigned int reg
)
104 if (wm8962_reg_access
[reg
].vol
)
110 static int wm8962_readable(unsigned int reg
)
112 if (wm8962_reg_access
[reg
].read
)
118 static int wm8962_reset(struct snd_soc_codec
*codec
)
120 return snd_soc_write(codec
, WM8962_SOFTWARE_RESET
, 0);
123 static const DECLARE_TLV_DB_SCALE(inpga_tlv
, -2325, 75, 0);
124 static const DECLARE_TLV_DB_SCALE(mixin_tlv
, -1500, 300, 0);
125 static const unsigned int mixinpga_tlv
[] = {
126 TLV_DB_RANGE_HEAD(7),
127 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
128 2, 2, TLV_DB_SCALE_ITEM(1300, 1300, 0),
129 3, 4, TLV_DB_SCALE_ITEM(1800, 200, 0),
130 5, 5, TLV_DB_SCALE_ITEM(2400, 0, 0),
131 6, 7, TLV_DB_SCALE_ITEM(2700, 300, 0),
133 static const DECLARE_TLV_DB_SCALE(beep_tlv
, -9600, 600, 1);
134 static const DECLARE_TLV_DB_SCALE(digital_tlv
, -7200, 75, 1);
135 static const DECLARE_TLV_DB_SCALE(st_tlv
, -3600, 300, 0);
136 static const DECLARE_TLV_DB_SCALE(inmix_tlv
, -600, 600, 0);
137 static const DECLARE_TLV_DB_SCALE(bypass_tlv
, -1500, 300, 0);
138 static const DECLARE_TLV_DB_SCALE(out_tlv
, -12100, 100, 1);
139 static const DECLARE_TLV_DB_SCALE(hp_tlv
, -700, 100, 0);
140 static const unsigned int classd_tlv
[] = {
141 TLV_DB_RANGE_HEAD(7),
142 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
143 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
146 /* The VU bits for the headphones are in a different register to the mute
147 * bits and only take effect on the PGA if it is actually powered.
149 static int wm8962_put_hp_sw(struct snd_kcontrol
*kcontrol
,
150 struct snd_ctl_elem_value
*ucontrol
)
152 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
153 u16
*reg_cache
= codec
->reg_cache
;
156 /* Apply the update (if any) */
157 ret
= snd_soc_put_volsw(kcontrol
, ucontrol
);
161 /* If the left PGA is enabled hit that VU bit... */
162 if (reg_cache
[WM8962_PWR_MGMT_2
] & WM8962_HPOUTL_PGA_ENA
)
163 return snd_soc_write(codec
, WM8962_HPOUTL_VOLUME
,
164 reg_cache
[WM8962_HPOUTL_VOLUME
]);
166 /* ...otherwise the right. The VU is stereo. */
167 if (reg_cache
[WM8962_PWR_MGMT_2
] & WM8962_HPOUTR_PGA_ENA
)
168 return snd_soc_write(codec
, WM8962_HPOUTR_VOLUME
,
169 reg_cache
[WM8962_HPOUTR_VOLUME
]);
174 /* The VU bits for the speakers are in a different register to the mute
175 * bits and only take effect on the PGA if it is actually powered.
177 static int wm8962_put_spk_sw(struct snd_kcontrol
*kcontrol
,
178 struct snd_ctl_elem_value
*ucontrol
)
180 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
181 u16
*reg_cache
= codec
->reg_cache
;
184 /* Apply the update (if any) */
185 ret
= snd_soc_put_volsw(kcontrol
, ucontrol
);
189 /* If the left PGA is enabled hit that VU bit... */
190 if (reg_cache
[WM8962_PWR_MGMT_2
] & WM8962_SPKOUTL_PGA_ENA
)
191 return snd_soc_write(codec
, WM8962_SPKOUTL_VOLUME
,
192 reg_cache
[WM8962_SPKOUTL_VOLUME
]);
194 /* ...otherwise the right. The VU is stereo. */
195 if (reg_cache
[WM8962_PWR_MGMT_2
] & WM8962_SPKOUTR_PGA_ENA
)
196 return snd_soc_write(codec
, WM8962_SPKOUTR_VOLUME
,
197 reg_cache
[WM8962_SPKOUTR_VOLUME
]);
202 static const struct snd_kcontrol_new wm8962_snd_controls
[] = {
203 SOC_DOUBLE("Input Mixer Switch", WM8962_INPUT_MIXER_CONTROL_1
, 3, 2, 1, 1),
205 SOC_SINGLE_TLV("MIXINL IN2L Volume", WM8962_LEFT_INPUT_MIXER_VOLUME
, 6, 7, 0,
207 SOC_SINGLE_TLV("MIXINL PGA Volume", WM8962_LEFT_INPUT_MIXER_VOLUME
, 3, 7, 0,
209 SOC_SINGLE_TLV("MIXINL IN3L Volume", WM8962_LEFT_INPUT_MIXER_VOLUME
, 0, 7, 0,
212 SOC_SINGLE_TLV("MIXINR IN2R Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME
, 6, 7, 0,
214 SOC_SINGLE_TLV("MIXINR PGA Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME
, 3, 7, 0,
216 SOC_SINGLE_TLV("MIXINR IN3R Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME
, 0, 7, 0,
219 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8962_LEFT_ADC_VOLUME
,
220 WM8962_RIGHT_ADC_VOLUME
, 1, 127, 0, digital_tlv
),
221 SOC_DOUBLE_R_TLV("Capture Volume", WM8962_LEFT_INPUT_VOLUME
,
222 WM8962_RIGHT_INPUT_VOLUME
, 0, 63, 0, inpga_tlv
),
223 SOC_DOUBLE_R("Capture Switch", WM8962_LEFT_INPUT_VOLUME
,
224 WM8962_RIGHT_INPUT_VOLUME
, 7, 1, 1),
225 SOC_DOUBLE_R("Capture ZC Switch", WM8962_LEFT_INPUT_VOLUME
,
226 WM8962_RIGHT_INPUT_VOLUME
, 6, 1, 1),
228 SOC_DOUBLE_R_TLV("Sidetone Volume", WM8962_DAC_DSP_MIXING_1
,
229 WM8962_DAC_DSP_MIXING_2
, 4, 12, 0, st_tlv
),
231 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8962_LEFT_DAC_VOLUME
,
232 WM8962_RIGHT_DAC_VOLUME
, 1, 127, 0, digital_tlv
),
233 SOC_SINGLE("DAC High Performance Switch", WM8962_ADC_DAC_CONTROL_2
, 0, 1, 0),
235 SOC_SINGLE("ADC High Performance Switch", WM8962_ADDITIONAL_CONTROL_1
,
238 SOC_SINGLE_TLV("Beep Volume", WM8962_BEEP_GENERATOR_1
, 4, 15, 0, beep_tlv
),
240 SOC_DOUBLE_R_TLV("Headphone Volume", WM8962_HPOUTL_VOLUME
,
241 WM8962_HPOUTR_VOLUME
, 0, 127, 0, out_tlv
),
242 SOC_DOUBLE_EXT("Headphone Switch", WM8962_PWR_MGMT_2
, 1, 0, 1, 1,
243 snd_soc_get_volsw
, wm8962_put_hp_sw
),
244 SOC_DOUBLE_R("Headphone ZC Switch", WM8962_HPOUTL_VOLUME
, WM8962_HPOUTR_VOLUME
,
246 SOC_DOUBLE_TLV("Headphone Aux Volume", WM8962_ANALOGUE_HP_2
, 3, 6, 7, 0,
249 SOC_DOUBLE_R("Headphone Mixer Switch", WM8962_HEADPHONE_MIXER_3
,
250 WM8962_HEADPHONE_MIXER_4
, 8, 1, 1),
252 SOC_SINGLE_TLV("HPMIXL IN4L Volume", WM8962_HEADPHONE_MIXER_3
,
253 3, 7, 0, bypass_tlv
),
254 SOC_SINGLE_TLV("HPMIXL IN4R Volume", WM8962_HEADPHONE_MIXER_3
,
255 0, 7, 0, bypass_tlv
),
256 SOC_SINGLE_TLV("HPMIXL MIXINL Volume", WM8962_HEADPHONE_MIXER_3
,
258 SOC_SINGLE_TLV("HPMIXL MIXINR Volume", WM8962_HEADPHONE_MIXER_3
,
261 SOC_SINGLE_TLV("HPMIXR IN4L Volume", WM8962_HEADPHONE_MIXER_4
,
262 3, 7, 0, bypass_tlv
),
263 SOC_SINGLE_TLV("HPMIXR IN4R Volume", WM8962_HEADPHONE_MIXER_4
,
264 0, 7, 0, bypass_tlv
),
265 SOC_SINGLE_TLV("HPMIXR MIXINL Volume", WM8962_HEADPHONE_MIXER_4
,
267 SOC_SINGLE_TLV("HPMIXR MIXINR Volume", WM8962_HEADPHONE_MIXER_4
,
270 SOC_SINGLE_TLV("Speaker Boost Volume", WM8962_CLASS_D_CONTROL_2
, 0, 7, 0,
274 static const struct snd_kcontrol_new wm8962_spk_mono_controls
[] = {
275 SOC_SINGLE_TLV("Speaker Volume", WM8962_SPKOUTL_VOLUME
, 0, 127, 0, out_tlv
),
276 SOC_SINGLE_EXT("Speaker Switch", WM8962_CLASS_D_CONTROL_1
, 1, 1, 1,
277 snd_soc_get_volsw
, wm8962_put_spk_sw
),
278 SOC_SINGLE("Speaker ZC Switch", WM8962_SPKOUTL_VOLUME
, 7, 1, 0),
280 SOC_SINGLE("Speaker Mixer Switch", WM8962_SPEAKER_MIXER_3
, 8, 1, 1),
281 SOC_SINGLE_TLV("Speaker Mixer IN4L Volume", WM8962_SPEAKER_MIXER_3
,
282 3, 7, 0, bypass_tlv
),
283 SOC_SINGLE_TLV("Speaker Mixer IN4R Volume", WM8962_SPEAKER_MIXER_3
,
284 0, 7, 0, bypass_tlv
),
285 SOC_SINGLE_TLV("Speaker Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_3
,
287 SOC_SINGLE_TLV("Speaker Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_3
,
289 SOC_SINGLE_TLV("Speaker Mixer DACL Volume", WM8962_SPEAKER_MIXER_5
,
291 SOC_SINGLE_TLV("Speaker Mixer DACR Volume", WM8962_SPEAKER_MIXER_5
,
295 static const struct snd_kcontrol_new wm8962_spk_stereo_controls
[] = {
296 SOC_DOUBLE_R_TLV("Speaker Volume", WM8962_SPKOUTL_VOLUME
,
297 WM8962_SPKOUTR_VOLUME
, 0, 127, 0, out_tlv
),
298 SOC_DOUBLE_EXT("Speaker Switch", WM8962_CLASS_D_CONTROL_1
, 1, 0, 1, 1,
299 snd_soc_get_volsw
, wm8962_put_spk_sw
),
300 SOC_DOUBLE_R("Speaker ZC Switch", WM8962_SPKOUTL_VOLUME
, WM8962_SPKOUTR_VOLUME
,
303 SOC_DOUBLE_R("Speaker Mixer Switch", WM8962_SPEAKER_MIXER_3
,
304 WM8962_SPEAKER_MIXER_4
, 8, 1, 1),
306 SOC_SINGLE_TLV("SPKOUTL Mixer IN4L Volume", WM8962_SPEAKER_MIXER_3
,
307 3, 7, 0, bypass_tlv
),
308 SOC_SINGLE_TLV("SPKOUTL Mixer IN4R Volume", WM8962_SPEAKER_MIXER_3
,
309 0, 7, 0, bypass_tlv
),
310 SOC_SINGLE_TLV("SPKOUTL Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_3
,
312 SOC_SINGLE_TLV("SPKOUTL Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_3
,
314 SOC_SINGLE_TLV("SPKOUTL Mixer DACL Volume", WM8962_SPEAKER_MIXER_5
,
316 SOC_SINGLE_TLV("SPKOUTL Mixer DACR Volume", WM8962_SPEAKER_MIXER_5
,
319 SOC_SINGLE_TLV("SPKOUTR Mixer IN4L Volume", WM8962_SPEAKER_MIXER_4
,
320 3, 7, 0, bypass_tlv
),
321 SOC_SINGLE_TLV("SPKOUTR Mixer IN4R Volume", WM8962_SPEAKER_MIXER_4
,
322 0, 7, 0, bypass_tlv
),
323 SOC_SINGLE_TLV("SPKOUTR Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_4
,
325 SOC_SINGLE_TLV("SPKOUTR Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_4
,
327 SOC_SINGLE_TLV("SPKOUTR Mixer DACL Volume", WM8962_SPEAKER_MIXER_5
,
329 SOC_SINGLE_TLV("SPKOUTR Mixer DACR Volume", WM8962_SPEAKER_MIXER_5
,
333 static int sysclk_event(struct snd_soc_dapm_widget
*w
,
334 struct snd_kcontrol
*kcontrol
, int event
)
336 struct snd_soc_codec
*codec
= w
->codec
;
340 src
= snd_soc_read(codec
, WM8962_CLOCKING2
) & WM8962_SYSCLK_SRC_MASK
;
346 case 0x200: /* FLL */
350 dev_err(codec
->dev
, "Unknown SYSCLK source %x\n", src
);
355 case SND_SOC_DAPM_PRE_PMU
:
357 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_1
,
358 WM8962_FLL_ENA
, WM8962_FLL_ENA
);
361 case SND_SOC_DAPM_POST_PMD
:
363 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_1
,
375 static int cp_event(struct snd_soc_dapm_widget
*w
,
376 struct snd_kcontrol
*kcontrol
, int event
)
379 case SND_SOC_DAPM_POST_PMU
:
391 static int hp_event(struct snd_soc_dapm_widget
*w
,
392 struct snd_kcontrol
*kcontrol
, int event
)
394 struct snd_soc_codec
*codec
= w
->codec
;
397 int expected
= (WM8962_DCS_STARTUP_DONE_HP1L
|
398 WM8962_DCS_STARTUP_DONE_HP1R
);
401 case SND_SOC_DAPM_POST_PMU
:
402 snd_soc_update_bits(codec
, WM8962_ANALOGUE_HP_0
,
403 WM8962_HP1L_ENA
| WM8962_HP1R_ENA
,
404 WM8962_HP1L_ENA
| WM8962_HP1R_ENA
);
407 snd_soc_update_bits(codec
, WM8962_ANALOGUE_HP_0
,
408 WM8962_HP1L_ENA_DLY
| WM8962_HP1R_ENA_DLY
,
409 WM8962_HP1L_ENA_DLY
| WM8962_HP1R_ENA_DLY
);
411 /* Start the DC servo */
412 snd_soc_update_bits(codec
, WM8962_DC_SERVO_1
,
413 WM8962_HP1L_DCS_ENA
| WM8962_HP1R_DCS_ENA
|
414 WM8962_HP1L_DCS_STARTUP
|
415 WM8962_HP1R_DCS_STARTUP
,
416 WM8962_HP1L_DCS_ENA
| WM8962_HP1R_DCS_ENA
|
417 WM8962_HP1L_DCS_STARTUP
|
418 WM8962_HP1R_DCS_STARTUP
);
420 /* Wait for it to complete, should be well under 100ms */
424 reg
= snd_soc_read(codec
, WM8962_DC_SERVO_6
);
427 "Failed to read DCS status: %d\n",
431 dev_dbg(codec
->dev
, "DCS status: %x\n", reg
);
432 } while (++timeout
< 200 && (reg
& expected
) != expected
);
434 if ((reg
& expected
) != expected
)
435 dev_err(codec
->dev
, "DC servo timed out\n");
437 dev_dbg(codec
->dev
, "DC servo complete after %dms\n",
440 snd_soc_update_bits(codec
, WM8962_ANALOGUE_HP_0
,
441 WM8962_HP1L_ENA_OUTP
|
442 WM8962_HP1R_ENA_OUTP
,
443 WM8962_HP1L_ENA_OUTP
|
444 WM8962_HP1R_ENA_OUTP
);
447 snd_soc_update_bits(codec
, WM8962_ANALOGUE_HP_0
,
448 WM8962_HP1L_RMV_SHORT
|
449 WM8962_HP1R_RMV_SHORT
,
450 WM8962_HP1L_RMV_SHORT
|
451 WM8962_HP1R_RMV_SHORT
);
454 case SND_SOC_DAPM_PRE_PMD
:
455 snd_soc_update_bits(codec
, WM8962_ANALOGUE_HP_0
,
456 WM8962_HP1L_RMV_SHORT
|
457 WM8962_HP1R_RMV_SHORT
, 0);
461 snd_soc_update_bits(codec
, WM8962_DC_SERVO_1
,
462 WM8962_HP1L_DCS_ENA
| WM8962_HP1R_DCS_ENA
|
463 WM8962_HP1L_DCS_STARTUP
|
464 WM8962_HP1R_DCS_STARTUP
,
467 snd_soc_update_bits(codec
, WM8962_ANALOGUE_HP_0
,
468 WM8962_HP1L_ENA
| WM8962_HP1R_ENA
|
469 WM8962_HP1L_ENA_DLY
| WM8962_HP1R_ENA_DLY
|
470 WM8962_HP1L_ENA_OUTP
|
471 WM8962_HP1R_ENA_OUTP
, 0);
484 /* VU bits for the output PGAs only take effect while the PGA is powered */
485 static int out_pga_event(struct snd_soc_dapm_widget
*w
,
486 struct snd_kcontrol
*kcontrol
, int event
)
488 struct snd_soc_codec
*codec
= w
->codec
;
489 u16
*reg_cache
= codec
->reg_cache
;
493 case WM8962_HPOUTR_PGA_ENA_SHIFT
:
494 reg
= WM8962_HPOUTR_VOLUME
;
496 case WM8962_HPOUTL_PGA_ENA_SHIFT
:
497 reg
= WM8962_HPOUTL_VOLUME
;
499 case WM8962_SPKOUTR_PGA_ENA_SHIFT
:
500 reg
= WM8962_SPKOUTR_VOLUME
;
502 case WM8962_SPKOUTL_PGA_ENA_SHIFT
:
503 reg
= WM8962_SPKOUTL_VOLUME
;
511 case SND_SOC_DAPM_POST_PMU
:
512 return snd_soc_write(codec
, reg
, reg_cache
[reg
]);
519 static const char *st_text
[] = { "None", "Right", "Left" };
521 static const struct soc_enum str_enum
=
522 SOC_ENUM_SINGLE(WM8962_DAC_DSP_MIXING_1
, 2, 3, st_text
);
524 static const struct snd_kcontrol_new str_mux
=
525 SOC_DAPM_ENUM("Right Sidetone", str_enum
);
527 static const struct soc_enum stl_enum
=
528 SOC_ENUM_SINGLE(WM8962_DAC_DSP_MIXING_2
, 2, 3, st_text
);
530 static const struct snd_kcontrol_new stl_mux
=
531 SOC_DAPM_ENUM("Left Sidetone", stl_enum
);
533 static const char *outmux_text
[] = { "DAC", "Mixer" };
535 static const struct soc_enum spkoutr_enum
=
536 SOC_ENUM_SINGLE(WM8962_SPEAKER_MIXER_2
, 7, 2, outmux_text
);
538 static const struct snd_kcontrol_new spkoutr_mux
=
539 SOC_DAPM_ENUM("SPKOUTR Mux", spkoutr_enum
);
541 static const struct soc_enum spkoutl_enum
=
542 SOC_ENUM_SINGLE(WM8962_SPEAKER_MIXER_1
, 7, 2, outmux_text
);
544 static const struct snd_kcontrol_new spkoutl_mux
=
545 SOC_DAPM_ENUM("SPKOUTL Mux", spkoutl_enum
);
547 static const struct soc_enum hpoutr_enum
=
548 SOC_ENUM_SINGLE(WM8962_HEADPHONE_MIXER_2
, 7, 2, outmux_text
);
550 static const struct snd_kcontrol_new hpoutr_mux
=
551 SOC_DAPM_ENUM("HPOUTR Mux", hpoutr_enum
);
553 static const struct soc_enum hpoutl_enum
=
554 SOC_ENUM_SINGLE(WM8962_HEADPHONE_MIXER_1
, 7, 2, outmux_text
);
556 static const struct snd_kcontrol_new hpoutl_mux
=
557 SOC_DAPM_ENUM("HPOUTL Mux", hpoutl_enum
);
559 static const struct snd_kcontrol_new inpgal
[] = {
560 SOC_DAPM_SINGLE("IN1L Switch", WM8962_LEFT_INPUT_PGA_CONTROL
, 3, 1, 0),
561 SOC_DAPM_SINGLE("IN2L Switch", WM8962_LEFT_INPUT_PGA_CONTROL
, 2, 1, 0),
562 SOC_DAPM_SINGLE("IN3L Switch", WM8962_LEFT_INPUT_PGA_CONTROL
, 1, 1, 0),
563 SOC_DAPM_SINGLE("IN4L Switch", WM8962_LEFT_INPUT_PGA_CONTROL
, 0, 1, 0),
566 static const struct snd_kcontrol_new inpgar
[] = {
567 SOC_DAPM_SINGLE("IN1R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL
, 3, 1, 0),
568 SOC_DAPM_SINGLE("IN2R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL
, 2, 1, 0),
569 SOC_DAPM_SINGLE("IN3R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL
, 1, 1, 0),
570 SOC_DAPM_SINGLE("IN4R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL
, 0, 1, 0),
573 static const struct snd_kcontrol_new mixinl
[] = {
574 SOC_DAPM_SINGLE("IN2L Switch", WM8962_INPUT_MIXER_CONTROL_2
, 5, 1, 0),
575 SOC_DAPM_SINGLE("IN3L Switch", WM8962_INPUT_MIXER_CONTROL_2
, 4, 1, 0),
576 SOC_DAPM_SINGLE("PGA Switch", WM8962_INPUT_MIXER_CONTROL_2
, 3, 1, 0),
579 static const struct snd_kcontrol_new mixinr
[] = {
580 SOC_DAPM_SINGLE("IN2R Switch", WM8962_INPUT_MIXER_CONTROL_2
, 2, 1, 0),
581 SOC_DAPM_SINGLE("IN3R Switch", WM8962_INPUT_MIXER_CONTROL_2
, 1, 1, 0),
582 SOC_DAPM_SINGLE("PGA Switch", WM8962_INPUT_MIXER_CONTROL_2
, 0, 1, 0),
585 static const struct snd_kcontrol_new hpmixl
[] = {
586 SOC_DAPM_SINGLE("DACL Switch", WM8962_HEADPHONE_MIXER_1
, 5, 1, 0),
587 SOC_DAPM_SINGLE("DACR Switch", WM8962_HEADPHONE_MIXER_1
, 4, 1, 0),
588 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_HEADPHONE_MIXER_1
, 3, 1, 0),
589 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_HEADPHONE_MIXER_1
, 2, 1, 0),
590 SOC_DAPM_SINGLE("IN4L Switch", WM8962_HEADPHONE_MIXER_1
, 1, 1, 0),
591 SOC_DAPM_SINGLE("IN4R Switch", WM8962_HEADPHONE_MIXER_1
, 0, 1, 0),
594 static const struct snd_kcontrol_new hpmixr
[] = {
595 SOC_DAPM_SINGLE("DACL Switch", WM8962_HEADPHONE_MIXER_2
, 5, 1, 0),
596 SOC_DAPM_SINGLE("DACR Switch", WM8962_HEADPHONE_MIXER_2
, 4, 1, 0),
597 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_HEADPHONE_MIXER_2
, 3, 1, 0),
598 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_HEADPHONE_MIXER_2
, 2, 1, 0),
599 SOC_DAPM_SINGLE("IN4L Switch", WM8962_HEADPHONE_MIXER_2
, 1, 1, 0),
600 SOC_DAPM_SINGLE("IN4R Switch", WM8962_HEADPHONE_MIXER_2
, 0, 1, 0),
603 static const struct snd_kcontrol_new spkmixl
[] = {
604 SOC_DAPM_SINGLE("DACL Switch", WM8962_SPEAKER_MIXER_1
, 5, 1, 0),
605 SOC_DAPM_SINGLE("DACR Switch", WM8962_SPEAKER_MIXER_1
, 4, 1, 0),
606 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_SPEAKER_MIXER_1
, 3, 1, 0),
607 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_SPEAKER_MIXER_1
, 2, 1, 0),
608 SOC_DAPM_SINGLE("IN4L Switch", WM8962_SPEAKER_MIXER_1
, 1, 1, 0),
609 SOC_DAPM_SINGLE("IN4R Switch", WM8962_SPEAKER_MIXER_1
, 0, 1, 0),
612 static const struct snd_kcontrol_new spkmixr
[] = {
613 SOC_DAPM_SINGLE("DACL Switch", WM8962_SPEAKER_MIXER_2
, 5, 1, 0),
614 SOC_DAPM_SINGLE("DACR Switch", WM8962_SPEAKER_MIXER_2
, 4, 1, 0),
615 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_SPEAKER_MIXER_2
, 3, 1, 0),
616 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_SPEAKER_MIXER_2
, 2, 1, 0),
617 SOC_DAPM_SINGLE("IN4L Switch", WM8962_SPEAKER_MIXER_2
, 1, 1, 0),
618 SOC_DAPM_SINGLE("IN4R Switch", WM8962_SPEAKER_MIXER_2
, 0, 1, 0),
621 static const struct snd_soc_dapm_widget wm8962_dapm_widgets
[] = {
622 SND_SOC_DAPM_INPUT("IN1L"),
623 SND_SOC_DAPM_INPUT("IN1R"),
624 SND_SOC_DAPM_INPUT("IN2L"),
625 SND_SOC_DAPM_INPUT("IN2R"),
626 SND_SOC_DAPM_INPUT("IN3L"),
627 SND_SOC_DAPM_INPUT("IN3R"),
628 SND_SOC_DAPM_INPUT("IN4L"),
629 SND_SOC_DAPM_INPUT("IN4R"),
630 SND_SOC_DAPM_INPUT("Beep"),
632 SND_SOC_DAPM_SUPPLY("Class G", WM8962_CHARGE_PUMP_B
, 0, 1, NULL
, 0),
633 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2
, 5, 0, sysclk_event
,
634 SND_SOC_DAPM_PRE_PMU
| SND_SOC_DAPM_POST_PMD
),
635 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8962_CHARGE_PUMP_1
, 0, 0, cp_event
,
636 SND_SOC_DAPM_POST_PMU
),
637 SND_SOC_DAPM_SUPPLY("TOCLK", WM8962_ADDITIONAL_CONTROL_1
, 0, 0, NULL
, 0),
639 SND_SOC_DAPM_MIXER("INPGAL", WM8962_LEFT_INPUT_PGA_CONTROL
, 4, 0,
640 inpgal
, ARRAY_SIZE(inpgal
)),
641 SND_SOC_DAPM_MIXER("INPGAR", WM8962_RIGHT_INPUT_PGA_CONTROL
, 4, 0,
642 inpgar
, ARRAY_SIZE(inpgar
)),
643 SND_SOC_DAPM_MIXER("MIXINL", WM8962_PWR_MGMT_1
, 5, 0,
644 mixinl
, ARRAY_SIZE(mixinl
)),
645 SND_SOC_DAPM_MIXER("MIXINR", WM8962_PWR_MGMT_1
, 4, 0,
646 mixinr
, ARRAY_SIZE(mixinr
)),
648 SND_SOC_DAPM_ADC("ADCL", "Capture", WM8962_PWR_MGMT_1
, 3, 0),
649 SND_SOC_DAPM_ADC("ADCR", "Capture", WM8962_PWR_MGMT_1
, 2, 0),
651 SND_SOC_DAPM_MUX("STL", SND_SOC_NOPM
, 0, 0, &stl_mux
),
652 SND_SOC_DAPM_MUX("STR", SND_SOC_NOPM
, 0, 0, &str_mux
),
654 SND_SOC_DAPM_DAC("DACL", "Playback", WM8962_PWR_MGMT_2
, 8, 0),
655 SND_SOC_DAPM_DAC("DACR", "Playback", WM8962_PWR_MGMT_2
, 7, 0),
657 SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM
, 0, 0, NULL
, 0),
658 SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM
, 0, 0, NULL
, 0),
660 SND_SOC_DAPM_MIXER("HPMIXL", WM8962_MIXER_ENABLES
, 3, 0,
661 hpmixl
, ARRAY_SIZE(hpmixl
)),
662 SND_SOC_DAPM_MIXER("HPMIXR", WM8962_MIXER_ENABLES
, 2, 0,
663 hpmixr
, ARRAY_SIZE(hpmixr
)),
665 SND_SOC_DAPM_MUX_E("HPOUTL PGA", WM8962_PWR_MGMT_2
, 6, 0, &hpoutl_mux
,
666 out_pga_event
, SND_SOC_DAPM_POST_PMU
),
667 SND_SOC_DAPM_MUX_E("HPOUTR PGA", WM8962_PWR_MGMT_2
, 5, 0, &hpoutr_mux
,
668 out_pga_event
, SND_SOC_DAPM_POST_PMU
),
670 SND_SOC_DAPM_PGA_E("HPOUT", SND_SOC_NOPM
, 0, 0, NULL
, 0, hp_event
,
671 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_PRE_PMD
),
673 SND_SOC_DAPM_OUTPUT("HPOUTL"),
674 SND_SOC_DAPM_OUTPUT("HPOUTR"),
677 static const struct snd_soc_dapm_widget wm8962_dapm_spk_mono_widgets
[] = {
678 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8962_MIXER_ENABLES
, 1, 0,
679 spkmixl
, ARRAY_SIZE(spkmixl
)),
680 SND_SOC_DAPM_MUX_E("Speaker PGA", WM8962_PWR_MGMT_2
, 4, 0, &spkoutl_mux
,
681 out_pga_event
, SND_SOC_DAPM_POST_PMU
),
682 SND_SOC_DAPM_PGA("Speaker Output", WM8962_CLASS_D_CONTROL_1
, 7, 0, NULL
, 0),
683 SND_SOC_DAPM_OUTPUT("SPKOUT"),
686 static const struct snd_soc_dapm_widget wm8962_dapm_spk_stereo_widgets
[] = {
687 SND_SOC_DAPM_MIXER("SPKOUTL Mixer", WM8962_MIXER_ENABLES
, 1, 0,
688 spkmixl
, ARRAY_SIZE(spkmixl
)),
689 SND_SOC_DAPM_MIXER("SPKOUTR Mixer", WM8962_MIXER_ENABLES
, 0, 0,
690 spkmixr
, ARRAY_SIZE(spkmixr
)),
692 SND_SOC_DAPM_MUX_E("SPKOUTL PGA", WM8962_PWR_MGMT_2
, 4, 0, &spkoutl_mux
,
693 out_pga_event
, SND_SOC_DAPM_POST_PMU
),
694 SND_SOC_DAPM_MUX_E("SPKOUTR PGA", WM8962_PWR_MGMT_2
, 3, 0, &spkoutr_mux
,
695 out_pga_event
, SND_SOC_DAPM_POST_PMU
),
697 SND_SOC_DAPM_PGA("SPKOUTR Output", WM8962_CLASS_D_CONTROL_1
, 7, 0, NULL
, 0),
698 SND_SOC_DAPM_PGA("SPKOUTL Output", WM8962_CLASS_D_CONTROL_1
, 6, 0, NULL
, 0),
700 SND_SOC_DAPM_OUTPUT("SPKOUTL"),
701 SND_SOC_DAPM_OUTPUT("SPKOUTR"),
704 static const struct snd_soc_dapm_route wm8962_intercon
[] = {
705 { "INPGAL", "IN1L Switch", "IN1L" },
706 { "INPGAL", "IN2L Switch", "IN2L" },
707 { "INPGAL", "IN3L Switch", "IN3L" },
708 { "INPGAL", "IN4L Switch", "IN4L" },
710 { "INPGAR", "IN1R Switch", "IN1R" },
711 { "INPGAR", "IN2R Switch", "IN2R" },
712 { "INPGAR", "IN3R Switch", "IN3R" },
713 { "INPGAR", "IN4R Switch", "IN4R" },
715 { "MIXINL", "IN2L Switch", "IN2L" },
716 { "MIXINL", "IN3L Switch", "IN3L" },
717 { "MIXINL", "PGA Switch", "INPGAL" },
719 { "MIXINR", "IN2R Switch", "IN2R" },
720 { "MIXINR", "IN3R Switch", "IN3R" },
721 { "MIXINR", "PGA Switch", "INPGAR" },
723 { "ADCL", NULL
, "SYSCLK" },
724 { "ADCL", NULL
, "TOCLK" },
725 { "ADCL", NULL
, "MIXINL" },
727 { "ADCR", NULL
, "SYSCLK" },
728 { "ADCR", NULL
, "TOCLK" },
729 { "ADCR", NULL
, "MIXINR" },
731 { "STL", "Left", "ADCL" },
732 { "STL", "Right", "ADCR" },
734 { "STR", "Left", "ADCL" },
735 { "STR", "Right", "ADCR" },
737 { "DACL", NULL
, "SYSCLK" },
738 { "DACL", NULL
, "TOCLK" },
739 { "DACL", NULL
, "Beep" },
740 { "DACL", NULL
, "STL" },
742 { "DACR", NULL
, "SYSCLK" },
743 { "DACR", NULL
, "TOCLK" },
744 { "DACR", NULL
, "Beep" },
745 { "DACR", NULL
, "STR" },
747 { "HPMIXL", "IN4L Switch", "IN4L" },
748 { "HPMIXL", "IN4R Switch", "IN4R" },
749 { "HPMIXL", "DACL Switch", "DACL" },
750 { "HPMIXL", "DACR Switch", "DACR" },
751 { "HPMIXL", "MIXINL Switch", "MIXINL" },
752 { "HPMIXL", "MIXINR Switch", "MIXINR" },
754 { "HPMIXR", "IN4L Switch", "IN4L" },
755 { "HPMIXR", "IN4R Switch", "IN4R" },
756 { "HPMIXR", "DACL Switch", "DACL" },
757 { "HPMIXR", "DACR Switch", "DACR" },
758 { "HPMIXR", "MIXINL Switch", "MIXINL" },
759 { "HPMIXR", "MIXINR Switch", "MIXINR" },
761 { "Left Bypass", NULL
, "HPMIXL" },
762 { "Left Bypass", NULL
, "Class G" },
764 { "Right Bypass", NULL
, "HPMIXR" },
765 { "Right Bypass", NULL
, "Class G" },
767 { "HPOUTL PGA", "Mixer", "Left Bypass" },
768 { "HPOUTL PGA", "DAC", "DACL" },
770 { "HPOUTR PGA", "Mixer", "Right Bypass" },
771 { "HPOUTR PGA", "DAC", "DACR" },
773 { "HPOUT", NULL
, "HPOUTL PGA" },
774 { "HPOUT", NULL
, "HPOUTR PGA" },
775 { "HPOUT", NULL
, "Charge Pump" },
776 { "HPOUT", NULL
, "SYSCLK" },
777 { "HPOUT", NULL
, "TOCLK" },
779 { "HPOUTL", NULL
, "HPOUT" },
780 { "HPOUTR", NULL
, "HPOUT" },
783 static const struct snd_soc_dapm_route wm8962_spk_mono_intercon
[] = {
784 { "Speaker Mixer", "IN4L Switch", "IN4L" },
785 { "Speaker Mixer", "IN4R Switch", "IN4R" },
786 { "Speaker Mixer", "DACL Switch", "DACL" },
787 { "Speaker Mixer", "DACR Switch", "DACR" },
788 { "Speaker Mixer", "MIXINL Switch", "MIXINL" },
789 { "Speaker Mixer", "MIXINR Switch", "MIXINR" },
791 { "Speaker PGA", "Mixer", "Speaker Mixer" },
792 { "Speaker PGA", "DAC", "DACL" },
794 { "Speaker Output", NULL
, "Speaker PGA" },
795 { "Speaker Output", NULL
, "SYSCLK" },
796 { "Speaker Output", NULL
, "TOCLK" },
798 { "SPKOUT", NULL
, "Speaker Output" },
801 static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon
[] = {
802 { "SPKOUTL Mixer", "IN4L Switch", "IN4L" },
803 { "SPKOUTL Mixer", "IN4R Switch", "IN4R" },
804 { "SPKOUTL Mixer", "DACL Switch", "DACL" },
805 { "SPKOUTL Mixer", "DACR Switch", "DACR" },
806 { "SPKOUTL Mixer", "MIXINL Switch", "MIXINL" },
807 { "SPKOUTL Mixer", "MIXINR Switch", "MIXINR" },
809 { "SPKOUTR Mixer", "IN4L Switch", "IN4L" },
810 { "SPKOUTR Mixer", "IN4R Switch", "IN4R" },
811 { "SPKOUTR Mixer", "DACL Switch", "DACL" },
812 { "SPKOUTR Mixer", "DACR Switch", "DACR" },
813 { "SPKOUTR Mixer", "MIXINL Switch", "MIXINL" },
814 { "SPKOUTR Mixer", "MIXINR Switch", "MIXINR" },
816 { "SPKOUTL PGA", "Mixer", "SPKOUTL Mixer" },
817 { "SPKOUTL PGA", "DAC", "DACL" },
819 { "SPKOUTR PGA", "Mixer", "SPKOUTR Mixer" },
820 { "SPKOUTR PGA", "DAC", "DACR" },
822 { "SPKOUTL Output", NULL
, "SPKOUTL PGA" },
823 { "SPKOUTL Output", NULL
, "SYSCLK" },
824 { "SPKOUTL Output", NULL
, "TOCLK" },
826 { "SPKOUTR Output", NULL
, "SPKOUTR PGA" },
827 { "SPKOUTR Output", NULL
, "SYSCLK" },
828 { "SPKOUTR Output", NULL
, "TOCLK" },
830 { "SPKOUTL", NULL
, "SPKOUTL Output" },
831 { "SPKOUTR", NULL
, "SPKOUTR Output" },
834 static int wm8962_add_widgets(struct snd_soc_codec
*codec
)
836 struct wm8962_pdata
*pdata
= dev_get_platdata(codec
->dev
);
838 snd_soc_add_controls(codec
, wm8962_snd_controls
,
839 ARRAY_SIZE(wm8962_snd_controls
));
840 if (pdata
&& pdata
->spk_mono
)
841 snd_soc_add_controls(codec
, wm8962_spk_mono_controls
,
842 ARRAY_SIZE(wm8962_spk_mono_controls
));
844 snd_soc_add_controls(codec
, wm8962_spk_stereo_controls
,
845 ARRAY_SIZE(wm8962_spk_stereo_controls
));
848 snd_soc_dapm_new_controls(codec
, wm8962_dapm_widgets
,
849 ARRAY_SIZE(wm8962_dapm_widgets
));
850 if (pdata
&& pdata
->spk_mono
)
851 snd_soc_dapm_new_controls(codec
, wm8962_dapm_spk_mono_widgets
,
852 ARRAY_SIZE(wm8962_dapm_spk_mono_widgets
));
854 snd_soc_dapm_new_controls(codec
, wm8962_dapm_spk_stereo_widgets
,
855 ARRAY_SIZE(wm8962_dapm_spk_stereo_widgets
));
857 snd_soc_dapm_add_routes(codec
, wm8962_intercon
,
858 ARRAY_SIZE(wm8962_intercon
));
859 if (pdata
&& pdata
->spk_mono
)
860 snd_soc_dapm_add_routes(codec
, wm8962_spk_mono_intercon
,
861 ARRAY_SIZE(wm8962_spk_mono_intercon
));
863 snd_soc_dapm_add_routes(codec
, wm8962_spk_stereo_intercon
,
864 ARRAY_SIZE(wm8962_spk_stereo_intercon
));
867 snd_soc_dapm_disable_pin(codec
, "Beep");
872 static void wm8962_sync_cache(struct snd_soc_codec
*codec
)
874 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
877 if (!codec
->cache_sync
)
880 dev_dbg(codec
->dev
, "Syncing cache\n");
882 codec
->cache_only
= 0;
884 /* Sync back cached values if they're different from the
887 for (i
= 1; i
< ARRAY_SIZE(wm8962
->reg_cache
); i
++) {
888 if (i
== WM8962_SOFTWARE_RESET
)
890 if (wm8962
->reg_cache
[i
] == wm8962_reg
[i
])
893 snd_soc_write(codec
, i
, wm8962
->reg_cache
[i
]);
896 codec
->cache_sync
= 0;
899 /* -1 for reserved values */
900 static const int bclk_divs
[] = {
901 1, -1, 2, 3, 4, -1, 6, 8, -1, 12, 16, 24, -1, 32, 32, 32
904 static void wm8962_configure_bclk(struct snd_soc_codec
*codec
)
906 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
911 /* If the CODEC is powered on we can configure BCLK */
912 if (codec
->bias_level
!= SND_SOC_BIAS_OFF
) {
913 dev_dbg(codec
->dev
, "Bias is off, can't configure BCLK\n");
918 dev_dbg(codec
->dev
, "No BCLK rate configured\n");
922 dspclk
= snd_soc_read(codec
, WM8962_CLOCKING1
);
924 dev_err(codec
->dev
, "Failed to read DSPCLK: %d\n", dspclk
);
928 dspclk
= (dspclk
& WM8962_DSPCLK_DIV_MASK
) >> WM8962_DSPCLK_DIV_SHIFT
;
931 dspclk
= wm8962
->sysclk_rate
;
934 dspclk
= wm8962
->sysclk_rate
/ 2;
937 dspclk
= wm8962
->sysclk_rate
/ 4;
940 dev_warn(codec
->dev
, "Unknown DSPCLK divisor read back\n");
941 dspclk
= wm8962
->sysclk
;
944 dev_dbg(codec
->dev
, "DSPCLK is %dHz, BCLK %d\n", dspclk
, wm8962
->bclk
);
946 /* We're expecting an exact match */
947 for (i
= 0; i
< ARRAY_SIZE(bclk_divs
); i
++) {
948 if (bclk_divs
[i
] < 0)
951 if (dspclk
/ bclk_divs
[i
] == wm8962
->bclk
) {
952 dev_dbg(codec
->dev
, "Selected BCLK_DIV %d for %dHz\n",
953 bclk_divs
[i
], wm8962
->bclk
);
958 if (i
== ARRAY_SIZE(bclk_divs
)) {
959 dev_err(codec
->dev
, "Unsupported BCLK ratio %d\n",
960 dspclk
/ wm8962
->bclk
);
964 aif2
|= wm8962
->bclk
/ wm8962
->lrclk
;
965 dev_dbg(codec
->dev
, "Selected LRCLK divisor %d for %dHz\n",
966 wm8962
->bclk
/ wm8962
->lrclk
, wm8962
->lrclk
);
968 snd_soc_update_bits(codec
, WM8962_CLOCKING2
,
969 WM8962_BCLK_DIV_MASK
, clocking2
);
970 snd_soc_update_bits(codec
, WM8962_AUDIO_INTERFACE_2
,
971 WM8962_AIF_RATE_MASK
, aif2
);
974 static int wm8962_set_bias_level(struct snd_soc_codec
*codec
,
975 enum snd_soc_bias_level level
)
977 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
980 if (level
== codec
->bias_level
)
984 case SND_SOC_BIAS_ON
:
987 case SND_SOC_BIAS_PREPARE
:
989 snd_soc_update_bits(codec
, WM8962_PWR_MGMT_1
,
990 WM8962_VMID_SEL_MASK
, 0x80);
993 case SND_SOC_BIAS_STANDBY
:
994 if (codec
->bias_level
== SND_SOC_BIAS_OFF
) {
995 ret
= regulator_bulk_enable(ARRAY_SIZE(wm8962
->supplies
),
999 "Failed to enable supplies: %d\n",
1004 wm8962_sync_cache(codec
);
1006 snd_soc_update_bits(codec
, WM8962_ANTI_POP
,
1007 WM8962_STARTUP_BIAS_ENA
|
1008 WM8962_VMID_BUF_ENA
,
1009 WM8962_STARTUP_BIAS_ENA
|
1010 WM8962_VMID_BUF_ENA
);
1012 /* Bias enable at 2*50k for ramp */
1013 snd_soc_update_bits(codec
, WM8962_PWR_MGMT_1
,
1014 WM8962_VMID_SEL_MASK
|
1016 WM8962_BIAS_ENA
| 0x180);
1020 snd_soc_update_bits(codec
, WM8962_CLOCKING2
,
1024 wm8962_configure_bclk(codec
);
1028 snd_soc_update_bits(codec
, WM8962_PWR_MGMT_1
,
1029 WM8962_VMID_SEL_MASK
, 0x100);
1032 case SND_SOC_BIAS_OFF
:
1033 snd_soc_update_bits(codec
, WM8962_PWR_MGMT_1
,
1034 WM8962_VMID_SEL_MASK
| WM8962_BIAS_ENA
, 0);
1036 snd_soc_update_bits(codec
, WM8962_ANTI_POP
,
1037 WM8962_STARTUP_BIAS_ENA
|
1038 WM8962_VMID_BUF_ENA
, 0);
1040 regulator_bulk_disable(ARRAY_SIZE(wm8962
->supplies
),
1044 codec
->bias_level
= level
;
1048 static const struct {
1065 static const int sysclk_rates
[] = {
1066 64, 128, 192, 256, 384, 512, 768, 1024, 1408, 1536,
1069 static int wm8962_hw_params(struct snd_pcm_substream
*substream
,
1070 struct snd_pcm_hw_params
*params
,
1071 struct snd_soc_dai
*dai
)
1073 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
1074 struct snd_soc_device
*socdev
= rtd
->socdev
;
1075 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
1076 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1077 int rate
= params_rate(params
);
1083 wm8962
->bclk
= snd_soc_params_to_bclk(params
);
1084 wm8962
->lrclk
= params_rate(params
);
1086 for (i
= 0; i
< ARRAY_SIZE(sr_vals
); i
++) {
1087 if (sr_vals
[i
].rate
== rate
) {
1088 adctl3
|= sr_vals
[i
].reg
;
1092 if (i
== ARRAY_SIZE(sr_vals
)) {
1093 dev_err(codec
->dev
, "Unsupported rate %dHz\n", rate
);
1097 if (rate
% 8000 == 0)
1098 adctl3
|= WM8962_SAMPLE_RATE_INT_MODE
;
1100 for (i
= 0; i
< ARRAY_SIZE(sysclk_rates
); i
++) {
1101 if (sysclk_rates
[i
] == wm8962
->sysclk_rate
/ rate
) {
1102 clocking4
|= i
<< WM8962_SYSCLK_RATE_SHIFT
;
1106 if (i
== ARRAY_SIZE(sysclk_rates
)) {
1107 dev_err(codec
->dev
, "Unsupported sysclk ratio %d\n",
1108 wm8962
->sysclk_rate
/ rate
);
1112 switch (params_format(params
)) {
1113 case SNDRV_PCM_FORMAT_S16_LE
:
1115 case SNDRV_PCM_FORMAT_S20_3LE
:
1118 case SNDRV_PCM_FORMAT_S24_LE
:
1121 case SNDRV_PCM_FORMAT_S32_LE
:
1128 snd_soc_update_bits(codec
, WM8962_AUDIO_INTERFACE_0
,
1129 WM8962_WL_MASK
, aif0
);
1130 snd_soc_update_bits(codec
, WM8962_ADDITIONAL_CONTROL_3
,
1131 WM8962_SAMPLE_RATE_INT_MODE
|
1132 WM8962_SAMPLE_RATE_MASK
, adctl3
);
1133 snd_soc_update_bits(codec
, WM8962_CLOCKING_4
,
1134 WM8962_SYSCLK_RATE_MASK
, clocking4
);
1136 wm8962_configure_bclk(codec
);
1141 static int wm8962_set_dai_sysclk(struct snd_soc_dai
*dai
, int clk_id
,
1142 unsigned int freq
, int dir
)
1144 struct snd_soc_codec
*codec
= dai
->codec
;
1145 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1149 case WM8962_SYSCLK_MCLK
:
1150 wm8962
->sysclk
= WM8962_SYSCLK_MCLK
;
1153 case WM8962_SYSCLK_FLL
:
1154 wm8962
->sysclk
= WM8962_SYSCLK_FLL
;
1155 src
= 1 << WM8962_SYSCLK_SRC_SHIFT
;
1156 WARN_ON(freq
!= wm8962
->fll_fout
);
1162 snd_soc_update_bits(codec
, WM8962_CLOCKING2
, WM8962_SYSCLK_SRC_MASK
,
1165 wm8962
->sysclk_rate
= freq
;
1170 static int wm8962_set_dai_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
1172 struct snd_soc_codec
*codec
= dai
->codec
;
1175 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
1176 case SND_SOC_DAIFMT_DSP_A
:
1177 aif0
|= WM8962_LRCLK_INV
;
1178 case SND_SOC_DAIFMT_DSP_B
:
1181 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1182 case SND_SOC_DAIFMT_NB_NF
:
1183 case SND_SOC_DAIFMT_IB_NF
:
1190 case SND_SOC_DAIFMT_RIGHT_J
:
1192 case SND_SOC_DAIFMT_LEFT_J
:
1195 case SND_SOC_DAIFMT_I2S
:
1202 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1203 case SND_SOC_DAIFMT_NB_NF
:
1205 case SND_SOC_DAIFMT_IB_NF
:
1206 aif0
|= WM8962_BCLK_INV
;
1208 case SND_SOC_DAIFMT_NB_IF
:
1209 aif0
|= WM8962_LRCLK_INV
;
1211 case SND_SOC_DAIFMT_IB_IF
:
1212 aif0
|= WM8962_BCLK_INV
| WM8962_LRCLK_INV
;
1218 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
1219 case SND_SOC_DAIFMT_CBM_CFM
:
1220 aif0
|= WM8962_MSTR
;
1222 case SND_SOC_DAIFMT_CBS_CFS
:
1228 snd_soc_update_bits(codec
, WM8962_AUDIO_INTERFACE_0
,
1229 WM8962_FMT_MASK
| WM8962_BCLK_INV
| WM8962_MSTR
|
1230 WM8962_LRCLK_INV
, aif0
);
1244 /* The size in bits of the FLL divide multiplied by 10
1245 * to allow rounding later */
1246 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1254 { 0, 64000, 4, 16 },
1255 { 64000, 128000, 3, 8 },
1256 { 128000, 256000, 2, 4 },
1257 { 256000, 1000000, 1, 2 },
1258 { 1000000, 13500000, 0, 1 },
1261 static int fll_factors(struct _fll_div
*fll_div
, unsigned int Fref
,
1264 unsigned int target
;
1266 unsigned int fratio
, gcd_fll
;
1269 /* Fref must be <=13.5MHz */
1271 fll_div
->fll_refclk_div
= 0;
1272 while ((Fref
/ div
) > 13500000) {
1274 fll_div
->fll_refclk_div
++;
1277 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1283 pr_debug("FLL Fref=%u Fout=%u\n", Fref
, Fout
);
1285 /* Apply the division for our remaining calculations */
1288 /* Fvco should be 90-100MHz; don't check the upper bound */
1290 while (Fout
* div
< 90000000) {
1293 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1298 target
= Fout
* div
;
1299 fll_div
->fll_outdiv
= div
- 1;
1301 pr_debug("FLL Fvco=%dHz\n", target
);
1303 /* Find an appropraite FLL_FRATIO and factor it out of the target */
1304 for (i
= 0; i
< ARRAY_SIZE(fll_fratios
); i
++) {
1305 if (fll_fratios
[i
].min
<= Fref
&& Fref
<= fll_fratios
[i
].max
) {
1306 fll_div
->fll_fratio
= fll_fratios
[i
].fll_fratio
;
1307 fratio
= fll_fratios
[i
].ratio
;
1311 if (i
== ARRAY_SIZE(fll_fratios
)) {
1312 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref
);
1316 fll_div
->n
= target
/ (fratio
* Fref
);
1318 if (target
% Fref
== 0) {
1320 fll_div
->lambda
= 0;
1322 gcd_fll
= gcd(target
, fratio
* Fref
);
1324 fll_div
->theta
= (target
- (fll_div
->n
* fratio
* Fref
))
1326 fll_div
->lambda
= (fratio
* Fref
) / gcd_fll
;
1329 pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n",
1330 fll_div
->n
, fll_div
->theta
, fll_div
->lambda
);
1331 pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n",
1332 fll_div
->fll_fratio
, fll_div
->fll_outdiv
,
1333 fll_div
->fll_refclk_div
);
1338 static int wm8962_set_fll(struct snd_soc_dai
*dai
, int fll_id
, int source
,
1339 unsigned int Fref
, unsigned int Fout
)
1341 struct snd_soc_codec
*codec
= dai
->codec
;
1342 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1343 struct _fll_div fll_div
;
1345 int fll1
= snd_soc_read(codec
, WM8962_FLL_CONTROL_1
);
1348 if (source
== wm8962
->fll_src
&& Fref
== wm8962
->fll_fref
&&
1349 Fout
== wm8962
->fll_fout
)
1353 dev_dbg(codec
->dev
, "FLL disabled\n");
1355 wm8962
->fll_fref
= 0;
1356 wm8962
->fll_fout
= 0;
1358 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_1
,
1364 ret
= fll_factors(&fll_div
, Fref
, Fout
);
1369 case WM8962_FLL_MCLK
:
1370 case WM8962_FLL_BCLK
:
1371 case WM8962_FLL_OSC
:
1372 fll1
|= (fll_id
- 1) << WM8962_FLL_REFCLK_SRC_SHIFT
;
1374 case WM8962_FLL_INT
:
1375 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_1
,
1376 WM8962_FLL_OSC_ENA
, WM8962_FLL_OSC_ENA
);
1377 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_5
,
1378 WM8962_FLL_FRC_NCO
, WM8962_FLL_FRC_NCO
);
1381 dev_err(codec
->dev
, "Unknown FLL source %d\n", ret
);
1385 if (fll_div
.theta
|| fll_div
.lambda
)
1386 fll1
|= WM8962_FLL_FRAC
;
1388 /* Stop the FLL while we reconfigure */
1389 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_1
, WM8962_FLL_ENA
, 0);
1391 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_2
,
1392 WM8962_FLL_OUTDIV_MASK
|
1393 WM8962_FLL_REFCLK_DIV_MASK
,
1394 (fll_div
.fll_outdiv
<< WM8962_FLL_OUTDIV_SHIFT
) |
1395 (fll_div
.fll_refclk_div
));
1397 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_3
,
1398 WM8962_FLL_FRATIO_MASK
, fll_div
.fll_fratio
);
1400 snd_soc_write(codec
, WM8962_FLL_CONTROL_6
, fll_div
.theta
);
1401 snd_soc_write(codec
, WM8962_FLL_CONTROL_7
, fll_div
.lambda
);
1402 snd_soc_write(codec
, WM8962_FLL_CONTROL_8
, fll_div
.n
);
1404 snd_soc_update_bits(codec
, WM8962_FLL_CONTROL_1
,
1405 WM8962_FLL_FRAC
| WM8962_FLL_REFCLK_SRC_MASK
|
1406 WM8962_FLL_ENA
, fll1
);
1408 dev_dbg(codec
->dev
, "FLL configured for %dHz->%dHz\n", Fref
, Fout
);
1410 wm8962
->fll_fref
= Fref
;
1411 wm8962
->fll_fout
= Fout
;
1412 wm8962
->fll_src
= source
;
1417 static int wm8962_mute(struct snd_soc_dai
*dai
, int mute
)
1419 struct snd_soc_codec
*codec
= dai
->codec
;
1423 val
= WM8962_DAC_MUTE
;
1427 return snd_soc_update_bits(codec
, WM8962_ADC_DAC_CONTROL_1
,
1428 WM8962_DAC_MUTE
, val
);
1431 #define WM8962_RATES SNDRV_PCM_RATE_8000_96000
1433 #define WM8962_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1434 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1436 static struct snd_soc_dai_ops wm8962_dai_ops
= {
1437 .hw_params
= wm8962_hw_params
,
1438 .set_sysclk
= wm8962_set_dai_sysclk
,
1439 .set_fmt
= wm8962_set_dai_fmt
,
1440 .set_pll
= wm8962_set_fll
,
1441 .digital_mute
= wm8962_mute
,
1444 struct snd_soc_dai wm8962_dai
= {
1447 .stream_name
= "Playback",
1450 .rates
= WM8962_RATES
,
1451 .formats
= WM8962_FORMATS
,
1454 .stream_name
= "Capture",
1457 .rates
= WM8962_RATES
,
1458 .formats
= WM8962_FORMATS
,
1460 .ops
= &wm8962_dai_ops
,
1461 .symmetric_rates
= 1,
1463 EXPORT_SYMBOL_GPL(wm8962_dai
);
1465 static int wm8962_probe(struct platform_device
*pdev
)
1467 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1468 struct snd_soc_codec
*codec
;
1471 if (wm8962_codec
== NULL
) {
1472 dev_err(&pdev
->dev
, "Codec device not registered\n");
1476 socdev
->card
->codec
= wm8962_codec
;
1477 codec
= wm8962_codec
;
1480 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
1482 dev_err(codec
->dev
, "failed to create pcms: %d\n", ret
);
1486 wm8962_add_widgets(codec
);
1494 static int wm8962_remove(struct platform_device
*pdev
)
1496 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1498 snd_soc_free_pcms(socdev
);
1499 snd_soc_dapm_free(socdev
);
1505 static int wm8962_resume(struct platform_device
*pdev
)
1507 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1508 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
1509 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1510 u16
*reg_cache
= codec
->reg_cache
;
1513 /* Restore the registers */
1514 for (i
= 1; i
< ARRAY_SIZE(wm8962
->reg_cache
); i
++) {
1516 case WM8962_SOFTWARE_RESET
:
1522 if (reg_cache
[i
] != wm8962_reg
[i
])
1523 snd_soc_write(codec
, i
, reg_cache
[i
]);
1529 #define wm8962_resume NULL
1532 struct snd_soc_codec_device soc_codec_dev_wm8962
= {
1533 .probe
= wm8962_probe
,
1534 .remove
= wm8962_remove
,
1535 .resume
= wm8962_resume
,
1537 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8962
);
1539 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
1540 static int beep_rates
[] = {
1541 500, 1000, 2000, 4000,
1544 static void wm8962_beep_work(struct work_struct
*work
)
1546 struct wm8962_priv
*wm8962
=
1547 container_of(work
, struct wm8962_priv
, beep_work
);
1548 struct snd_soc_codec
*codec
= &wm8962
->codec
;
1553 if (wm8962
->beep_rate
) {
1554 for (i
= 0; i
< ARRAY_SIZE(beep_rates
); i
++) {
1555 if (abs(wm8962
->beep_rate
- beep_rates
[i
]) <
1556 abs(wm8962
->beep_rate
- beep_rates
[best
]))
1560 dev_dbg(codec
->dev
, "Set beep rate %dHz for requested %dHz\n",
1561 beep_rates
[best
], wm8962
->beep_rate
);
1563 reg
= WM8962_BEEP_ENA
| (best
<< WM8962_BEEP_RATE_SHIFT
);
1565 snd_soc_dapm_enable_pin(codec
, "Beep");
1567 dev_dbg(codec
->dev
, "Disabling beep\n");
1568 snd_soc_dapm_disable_pin(codec
, "Beep");
1571 snd_soc_update_bits(codec
, WM8962_BEEP_GENERATOR_1
,
1572 WM8962_BEEP_ENA
| WM8962_BEEP_RATE_MASK
, reg
);
1574 snd_soc_dapm_sync(codec
);
1577 /* For usability define a way of injecting beep events for the device -
1578 * many systems will not have a keyboard.
1580 static int wm8962_beep_event(struct input_dev
*dev
, unsigned int type
,
1581 unsigned int code
, int hz
)
1583 struct snd_soc_codec
*codec
= input_get_drvdata(dev
);
1584 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1586 dev_dbg(codec
->dev
, "Beep event %x %x\n", code
, hz
);
1598 /* Kick the beep from a workqueue */
1599 wm8962
->beep_rate
= hz
;
1600 schedule_work(&wm8962
->beep_work
);
1604 static ssize_t
wm8962_beep_set(struct device
*dev
,
1605 struct device_attribute
*attr
,
1606 const char *buf
, size_t count
)
1608 struct wm8962_priv
*wm8962
= dev_get_drvdata(dev
);
1611 strict_strtol(buf
, 10, &time
);
1613 input_event(wm8962
->beep
, EV_SND
, SND_TONE
, time
);
1618 static DEVICE_ATTR(beep
, 0200, NULL
, wm8962_beep_set
);
1620 static void wm8962_init_beep(struct snd_soc_codec
*codec
)
1622 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1625 wm8962
->beep
= input_allocate_device();
1626 if (!wm8962
->beep
) {
1627 dev_err(codec
->dev
, "Failed to allocate beep device\n");
1631 INIT_WORK(&wm8962
->beep_work
, wm8962_beep_work
);
1632 wm8962
->beep_rate
= 0;
1634 wm8962
->beep
->name
= "WM8962 Beep Generator";
1635 wm8962
->beep
->phys
= dev_name(codec
->dev
);
1636 wm8962
->beep
->id
.bustype
= BUS_I2C
;
1638 wm8962
->beep
->evbit
[0] = BIT_MASK(EV_SND
);
1639 wm8962
->beep
->sndbit
[0] = BIT_MASK(SND_BELL
) | BIT_MASK(SND_TONE
);
1640 wm8962
->beep
->event
= wm8962_beep_event
;
1641 wm8962
->beep
->dev
.parent
= codec
->dev
;
1642 input_set_drvdata(wm8962
->beep
, codec
);
1644 ret
= input_register_device(wm8962
->beep
);
1646 input_free_device(wm8962
->beep
);
1647 wm8962
->beep
= NULL
;
1648 dev_err(codec
->dev
, "Failed to register beep device\n");
1651 ret
= device_create_file(codec
->dev
, &dev_attr_beep
);
1653 dev_err(codec
->dev
, "Failed to create keyclick file: %d\n",
1658 static void wm8962_free_beep(struct snd_soc_codec
*codec
)
1660 struct wm8962_priv
*wm8962
= snd_soc_codec_get_drvdata(codec
);
1662 device_remove_file(codec
->dev
, &dev_attr_beep
);
1663 input_unregister_device(wm8962
->beep
);
1664 cancel_work_sync(&wm8962
->beep_work
);
1665 wm8962
->beep
= NULL
;
1667 snd_soc_update_bits(codec
, WM8962_BEEP_GENERATOR_1
, WM8962_BEEP_ENA
,0);
1670 static void wm8962_init_beep(struct snd_soc_codec
*codec
)
1674 static void wm8962_free_beep(struct snd_soc_codec
*codec
)
1679 static int wm8962_register(struct wm8962_priv
*wm8962
,
1680 enum snd_soc_control_type control
)
1683 struct snd_soc_codec
*codec
= &wm8962
->codec
;
1684 struct wm8962_pdata
*pdata
= dev_get_platdata(codec
->dev
);
1688 dev_err(codec
->dev
, "Another WM8962 is registered\n");
1692 mutex_init(&codec
->mutex
);
1693 INIT_LIST_HEAD(&codec
->dapm_widgets
);
1694 INIT_LIST_HEAD(&codec
->dapm_paths
);
1696 snd_soc_codec_set_drvdata(codec
, wm8962
);
1697 codec
->name
= "WM8962";
1698 codec
->owner
= THIS_MODULE
;
1699 codec
->bias_level
= SND_SOC_BIAS_OFF
;
1700 codec
->set_bias_level
= wm8962_set_bias_level
;
1701 codec
->dai
= &wm8962_dai
;
1703 codec
->reg_cache_size
= WM8962_MAX_REGISTER
;
1704 codec
->reg_cache
= &wm8962
->reg_cache
;
1705 codec
->volatile_register
= wm8962_volatile_register
;
1706 codec
->cache_sync
= 1;
1707 codec
->idle_bias_off
= 1;
1708 codec
->readable_register
= wm8962_readable
;
1710 memcpy(codec
->reg_cache
, wm8962_reg
, sizeof(wm8962_reg
));
1712 ret
= snd_soc_codec_set_cache_io(codec
, 16, 16, control
);
1714 dev_err(codec
->dev
, "Failed to set cache I/O: %d\n", ret
);
1718 for (i
= 0; i
< ARRAY_SIZE(wm8962
->supplies
); i
++)
1719 wm8962
->supplies
[i
].supply
= wm8962_supply_names
[i
];
1721 ret
= regulator_bulk_get(codec
->dev
, ARRAY_SIZE(wm8962
->supplies
),
1724 dev_err(codec
->dev
, "Failed to request supplies: %d\n", ret
);
1728 wm8962
->disable_nb
[0].notifier_call
= wm8962_regulator_event_0
;
1729 wm8962
->disable_nb
[1].notifier_call
= wm8962_regulator_event_1
;
1730 wm8962
->disable_nb
[2].notifier_call
= wm8962_regulator_event_2
;
1731 wm8962
->disable_nb
[3].notifier_call
= wm8962_regulator_event_3
;
1732 wm8962
->disable_nb
[4].notifier_call
= wm8962_regulator_event_4
;
1733 wm8962
->disable_nb
[5].notifier_call
= wm8962_regulator_event_5
;
1734 wm8962
->disable_nb
[6].notifier_call
= wm8962_regulator_event_6
;
1735 wm8962
->disable_nb
[7].notifier_call
= wm8962_regulator_event_7
;
1737 /* This should really be moved into the regulator core */
1738 for (i
= 0; i
< ARRAY_SIZE(wm8962
->supplies
); i
++) {
1739 ret
= regulator_register_notifier(wm8962
->supplies
[i
].consumer
,
1740 &wm8962
->disable_nb
[i
]);
1743 "Failed to register regulator notifier: %d\n",
1748 ret
= regulator_bulk_enable(ARRAY_SIZE(wm8962
->supplies
),
1751 dev_err(codec
->dev
, "Failed to enable supplies: %d\n", ret
);
1755 ret
= snd_soc_read(codec
, WM8962_SOFTWARE_RESET
);
1757 dev_err(codec
->dev
, "Failed to read ID register\n");
1760 if (ret
!= wm8962_reg
[WM8962_SOFTWARE_RESET
]) {
1761 dev_err(codec
->dev
, "Device is not a WM8962, ID %x != %x\n",
1762 ret
, wm8962_reg
[WM8962_SOFTWARE_RESET
]);
1767 ret
= snd_soc_read(codec
, WM8962_RIGHT_INPUT_VOLUME
);
1769 dev_err(codec
->dev
, "Failed to read device revision: %d\n",
1774 dev_info(codec
->dev
, "customer id %x revision %c\n",
1775 (ret
& WM8962_CUST_ID_MASK
) >> WM8962_CUST_ID_SHIFT
,
1776 ((ret
& WM8962_CHIP_REV_MASK
) >> WM8962_CHIP_REV_SHIFT
)
1779 ret
= wm8962_reset(codec
);
1781 dev_err(codec
->dev
, "Failed to issue reset\n");
1785 /* SYSCLK defaults to on; make sure it is off so we can safely
1786 * write to registers if the device is declocked.
1788 snd_soc_update_bits(codec
, WM8962_CLOCKING2
, WM8962_SYSCLK_ENA
, 0);
1790 regulator_bulk_disable(ARRAY_SIZE(wm8962
->supplies
), wm8962
->supplies
);
1793 /* Apply static configuration for GPIOs */
1794 for (i
= 0; i
< ARRAY_SIZE(pdata
->gpio_init
); i
++)
1795 if (pdata
->gpio_init
[i
])
1796 snd_soc_write(codec
, 0x200 + i
,
1797 pdata
->gpio_init
[i
] & 0xffff);
1799 /* Put the speakers into mono mode? */
1800 if (pdata
->spk_mono
)
1801 wm8962
->reg_cache
[WM8962_CLASS_D_CONTROL_2
]
1805 /* Latch volume update bits */
1806 wm8962
->reg_cache
[WM8962_LEFT_INPUT_VOLUME
] |= WM8962_IN_VU
;
1807 wm8962
->reg_cache
[WM8962_RIGHT_INPUT_VOLUME
] |= WM8962_IN_VU
;
1808 wm8962
->reg_cache
[WM8962_LEFT_ADC_VOLUME
] |= WM8962_ADC_VU
;
1809 wm8962
->reg_cache
[WM8962_RIGHT_ADC_VOLUME
] |= WM8962_ADC_VU
;
1810 wm8962
->reg_cache
[WM8962_LEFT_DAC_VOLUME
] |= WM8962_DAC_VU
;
1811 wm8962
->reg_cache
[WM8962_RIGHT_DAC_VOLUME
] |= WM8962_DAC_VU
;
1812 wm8962
->reg_cache
[WM8962_SPKOUTL_VOLUME
] |= WM8962_SPKOUT_VU
;
1813 wm8962
->reg_cache
[WM8962_SPKOUTR_VOLUME
] |= WM8962_SPKOUT_VU
;
1814 wm8962
->reg_cache
[WM8962_HPOUTL_VOLUME
] |= WM8962_HPOUT_VU
;
1815 wm8962
->reg_cache
[WM8962_HPOUTR_VOLUME
] |= WM8962_HPOUT_VU
;
1817 wm8962_dai
.dev
= codec
->dev
;
1819 wm8962_codec
= codec
;
1821 ret
= snd_soc_register_codec(codec
);
1823 dev_err(codec
->dev
, "Failed to register codec: %d\n", ret
);
1827 ret
= snd_soc_register_dai(&wm8962_dai
);
1829 dev_err(codec
->dev
, "Failed to register DAI: %d\n", ret
);
1830 snd_soc_unregister_codec(codec
);
1834 wm8962_init_beep(codec
);
1839 regulator_bulk_disable(ARRAY_SIZE(wm8962
->supplies
), wm8962
->supplies
);
1841 regulator_bulk_free(ARRAY_SIZE(wm8962
->supplies
), wm8962
->supplies
);
1847 static void wm8962_unregister(struct wm8962_priv
*wm8962
)
1851 wm8962_free_beep(&wm8962
->codec
);
1852 wm8962_set_bias_level(&wm8962
->codec
, SND_SOC_BIAS_OFF
);
1853 for (i
= 0; i
< ARRAY_SIZE(wm8962
->supplies
); i
++)
1854 regulator_unregister_notifier(wm8962
->supplies
[i
].consumer
,
1855 &wm8962
->disable_nb
[i
]);
1856 regulator_bulk_free(ARRAY_SIZE(wm8962
->supplies
), wm8962
->supplies
);
1857 snd_soc_unregister_dai(&wm8962_dai
);
1858 snd_soc_unregister_codec(&wm8962
->codec
);
1860 wm8962_codec
= NULL
;
1863 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1864 static __devinit
int wm8962_i2c_probe(struct i2c_client
*i2c
,
1865 const struct i2c_device_id
*id
)
1867 struct wm8962_priv
*wm8962
;
1868 struct snd_soc_codec
*codec
;
1870 wm8962
= kzalloc(sizeof(struct wm8962_priv
), GFP_KERNEL
);
1874 codec
= &wm8962
->codec
;
1875 codec
->hw_write
= (hw_write_t
)i2c_master_send
;
1877 i2c_set_clientdata(i2c
, wm8962
);
1878 codec
->control_data
= i2c
;
1880 codec
->dev
= &i2c
->dev
;
1882 return wm8962_register(wm8962
, SND_SOC_I2C
);
1885 static __devexit
int wm8962_i2c_remove(struct i2c_client
*client
)
1887 struct wm8962_priv
*wm8962
= i2c_get_clientdata(client
);
1888 wm8962_unregister(wm8962
);
1892 static const struct i2c_device_id wm8962_i2c_id
[] = {
1896 MODULE_DEVICE_TABLE(i2c
, wm8962_i2c_id
);
1898 static struct i2c_driver wm8962_i2c_driver
= {
1901 .owner
= THIS_MODULE
,
1903 .probe
= wm8962_i2c_probe
,
1904 .remove
= __devexit_p(wm8962_i2c_remove
),
1905 .id_table
= wm8962_i2c_id
,
1909 static int __init
wm8962_modinit(void)
1912 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1913 ret
= i2c_add_driver(&wm8962_i2c_driver
);
1915 printk(KERN_ERR
"Failed to register WM8962 I2C driver: %d\n",
1921 module_init(wm8962_modinit
);
1923 static void __exit
wm8962_exit(void)
1925 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1926 i2c_del_driver(&wm8962_i2c_driver
);
1929 module_exit(wm8962_exit
);
1931 MODULE_DESCRIPTION("ASoC WM8962 driver");
1932 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
1933 MODULE_LICENSE("GPL");